C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
345/11, 88/117,
C08F 20/36 (2006.01) C08F 20/60 (2006.01) C09K 19/38 (2006.01) G02B 5/30 (2006.01) G02F 1/35 (2006.01) G02F 1/361 (2006.01)
Patent
CA 1322814
Abstract A linear addition polymer having sidegroups which may be coupled to it or not through a spacer and have a molecular hyperpolarizability .beta. of at least10-38 m4/V, characterized in that the recurring units of the polymer correspond to the formula Image , wherein X represents a hydrogen atom or a lower alkyl group and m = 1 or optionally 0, where when m - 1 Y represents a Image or Image group and R has the meaning of a) a hyperpolarizable group having a molecular hyperpolarizability .beta. of at least 10-38 m4/V, in the presence or not of a spacer, and optionally along with b) a mesogenic group in the presence or not of a spacer, and/or c) a hydrogen atom or a substituted or unsubstituted organic group having not more than 30 carbon atoms, and when m = 0 Y represents a -CN, a substituted or unsubstituted phenyl group or a group of the formula -OR1 or -CH2OR1, wherein R1 has the meaning of a hydrogen atom or a substituted or unsubstituted aliphatic group having not more than 20 carbon atoms, provided that - at least 10% of the recurring units in the polymer contain a hyper- polarizable group having a molecular hyperpolarizability .beta. of at least 10-38 m4/V, - at the most 40% of the recurring units in the polymer contain a mesogenic group, and - that the quotient of the degree of substitution of the recurring units with a group having a molecular hyperpolarizability .beta. of at least 10-38 m4/V and the average molecular weight of R with the meaning given under b and c amounts to at least 5 x 10-4, a non-linear optical medium thereof oriented in an electric field anti electro-optical laminates com- prising such a non-linear optical medium.
563022
Erdhuisen Erwin Wilhelmus Petrus
Wreesmann Carel Theodoor Jozef
Akzo N.v.
Marks & Clerk
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